[en] Recycling of the energy from the used fuel is compulsory for a sustainable development of nuclear renaissance. By 2030 the total amount of used fuel on our planet will have reached about 400 000 t. The potential amount of energy to recycle from this deposit represents about 8 billions of equivalent tons of petrol. Indeed, the recycling of the plutonium and uranium recovered from the used fuels represents important savings of natural uranium and avoid costs of enrichment. The global rate of recycling is about 20 %. The advantages of recycling have been demonstrated by the successful policy of recycling, for more than 30 years, in Europe: - in the first phase which lasts more than 18 years, the utility's number of spent assemblies is reduced by a factor of 8 (one MOX assembly requires the quantity of plutonium generated by 8 UOx assemblies) - in the final phase the final wastes volume is reduced by a factor of 5, after conditioning (vitrified fission products in stable matrix designed for final repository and compacted hulls and skulls) - the radio toxicity of these final wastes, is reduced by a factor of 10: the delay for radioactive decay is tremendously decreased and the level of natural radioactivity is reached within historic memory delays - recycling is a non proliferation policy: the overall quantity of available plutonium is mastered, the plutonium isotopy in the MOX is inappropriate for non civil purposes. Recycling excess weapon grade plutonium into MOX is the only solution chosen by the US administration in order to eliminate the stockpile of excess WG plutonium in the US. Recycling of MOX is an industrial reality in Europe with 35 reactors using MOX, with a satisfactory return of experience. Nowadays, MELOX, AREVA high throughput MOX manufacturing plant (licensed for 195 tHM/year) ensures the world's international demand for MOX with the highest level of quality of the products. The AREVA industrial treatment plant in La Hague (with a capacity of 1700 t/year) masters all the activities of treatment since the start up, in the seventies. La Hague and MELOX are now considered as technological reference for all the international projects of recycling (in the US with the MFFF plant, in Japan with JMOX plant and other countries). The return of experience of MOX in Europe (burn up and reliability) will also be presented. MELOX in addition to the European needs, is being fabricating the first MOX for Japan, contributing to the Pu thermal program expressing the recycling policy in Japan as a priority. For the mid term, the GEN3 AREVA reactors (EPR^TM, ATMEA^TM) are designed taking into account all the needs for recycling. Together with the UO₂, ERU, and MOX fuels, and GEN3 reactors able to recycle at the level wished by the utility, AREVA offers the utilities all the possibilities for recycling the energy without any worry about the fuel, either fresh or used. EPR is a trademark of AREVA Group. ATMEA is a trademark of AREVA (joint venture between AREVA and MHI). (authors)